Boiler cleaner



A. A. OLSON.

olLER cLEANERf APFL|CAT-|ON FILED OCT. 7. i920.

Patented June 6, 1922f nLrnnD nyoigson, or oannrri, OKLAHOMA.

Beinen CLEANER.

To all fui/1.0m t may concer/1L.'

Be it known that l, Linnen A. OLSON, a citizen of the United States, residingat Cardin, in the county of @ttawa .and State of Oklahoma, nave invented certain new' and useful Improvements in Boiler Cleaners, of which the following is a specification.

This invention relates to sediment tanks for boiler cleaners and -is an improved apparatus ,for removing foreign matter and impurities from the water in a steam boiler, to' minimize the lodgment of sediment. andprevent the formation of scale. It' has long been arecognized fact that in making steam in a tubular boiler, the violent action ofthe applied heat greatly agitates the water causing the foreign matter to rise near `the surface; and further that so far as approximately the same heat within the boiler is maintained, the foreign matter will follow the water in a surface discharge.

The present invention comprises a sediment tank to which water containing impurities is delivered by means of a pivoted Heating skimmer to collect the impurities vwithin the boiler, a pipe connected thereto at the smaller end, leading outside to a conveniently located sediment tank, said pipe between the boiler andl sediment tank being covered with insulating material to maintain the temperature of its contents; a sediment tank, a cone shaped .deflector open at the top, arranged in the sediment tank with the end of the connecting pipe discharging within, a diaphragm Varranged within the cone and partially closing the bottom thereof, the diaphragm being provided with a plurality of spiral bladeslaround its outer circumference and within the cone, and a plurality of spiral blades attached to the lower outside circumference of the cone and occupying ther space between the cone and the inner wall of the tank, the purpose of the two sets of spiral blades being to create a whirling motion in the water forced through the tank when all the valves leading to and from the tank are opened for the purpose yof removing sediment therefrom; an outlet pipe arranged near the top of the tank for the return of clear water to the lower portion of the boiler, it being understood both the sediment tank and the pipe for the return water to the boiler are to remain eX posed to the lower temperature outside to facilitate the deposition of the sediment Specification of Letters Patent.

water to the'boiler.

the sedimentv rtank. l

ratentmgi .nine e, ieee.

Application nledctober 7,1920.' Serial No. 415,314.

within the tanky and :the `return action .0f the ln the accompanying drawings,` l have slipwn one embodiment of the invention. ln this showing,

. lFigure l is Aa vertical sectional `viewof 'Figure 2 is a sectional view -on tui of Figure l. A

Figure 3 is a similar view onfthe line 5 '5 of Figure l.r y

Figure .et isa detail side elevation of the cone, and

Figure is a detailperspective view of onefofthe blades. 'i Referring :to the drawings, l a "sediment tank 1S isarranged in .any convenient position, and is connected to the boiler by a pipe 20. The end of the pipe 20 extends downwardly into the tank and a cone 2l is arranged over thel end of the pipe. As

shown, the cone is supported by a plurality` of arms 22 which are secured to a ring 23 arc ranged on the pipe. A plate or diaphragm 24; is arranged near the bottom of the cone and forms a partial closure therefor.` This plate may he supported by arms 25'v secured to the cone. iis shown, a plurality of spiral blades 2G are arranged in the space between the edge of the plate and the walls of the cone. These blades are provided with attached members 27 secured to the plate. A second set of blades 28 are arranged on the outside of the cone in the space between the cone and the inner wall of the tank. The detail construction of this blade is shown in Figure 5 of the drawings. As shown, the blades are provided with arms or ertensions 29 by which they are secured to the cone.

The lower end of the tank is provided with a blow-off pipe 30 having a valve 3l therein. The operation of the device is as follows: rlhe water from the boiler enters the tank through pipe 2O and is delivered to the interior of the cone 2l. After passing from the pipe 20 into the cone 2l, it strikes the diaphragm which deiiects it in an upward movement through the top of the cone where it comes in contact with the cooler temperature of the sides of the tank 18. The action is such that the heavier particles of sediment kwill follow down the interior walls of the the `cone 2l, the settling process being iacilitated by the lower temperature. The sediment passes through the spaces between the blades 26 and 2S to the bottom of the tank 18, and may be Withdrawn from time to time through the blow-oin pipe 30 by opening the valve 31, While both valves 17 and 34 are still open. An outlet pipe 32 is arranged near the top of the tank communicating with the Water compartment of the boiler by pipe 33 in which is located an emergency valve 34. The clear Water is returned to the boiler through this pipe.

During the cleaning operation, With the Valve 31 open, the boiler pressure forces Water and steam into the tank 18 through pipes 2O and 3Q. The Water and steam delivered through pipe 32 is given a spiral niotion in the upper portion of the tank, and the passage of the Water through the blades 26 and 28 increases this motion and insures re moval of all sediment from the tank.

It is to be understood that while 'l have described the preferred embodiment oif' my invention, various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined elainis.

Having thus described .my invention, I claim:

1. In a sediment tank, a pipe to deliver water 'from a boiler to said tank, a cone supported in said tank, said pipe having its outlet arranged in said cone, a baiiie plate arranged in said cone, the edges of said plate being spaced from the walls oit the cone, and spiral blades arranged in said space.

2. In a sediment tank, a pipe to deliver Water from a boiler` to said tank, a cone supported in said tank, said pipe having its outlet arranged in said cone, a baiiie plate arranged in said cone, the edges of said plate being spaced from the Walls of the cone, spiral blades arranged in said space, and a second set oi blades arranged between the cone and the outer wall oi' the tank.

In testimony whereof I aliix my signature in presence of two witnesses.

ALFRED A. )LSUN 1V itnesses ETHEL VIUGHT, @ROVER C. JAMES. 

